Band of brothers: With a sound beyond their years, you’d never guess that the Heetderks brothers are all under age 17. Picking out traditional bluegrass and gospel as The Earlysville Bluegrass Boys, David (banjo, dobro), John (mandolin, fiddle), and Daniel (guitar, bass) have made a name for themselves by charming audiences at church picnics and on CPA-TV’s “Blue Ridge Barn Dance.” The Boys recent Christmas countdown on Facebook captured their talent through originals, standards, and a wild reworking of “You’re a Mean One, Mr. Grinch.” The trio’s appearance on the virtual Save the Music series will benefit Meals on Wheels of Charlottesville/Albemarle.